化工矿物与加工2025，Vol.54Issue(12)：33-39,7.DOI:10.16283/j.cnki.hgkwyjg.2025.12.005
钛石膏基免烧砌块制备及其性能研究
Study on preparation and properties of titanium gypsum based unburned block
摘要
Abstract
Titanium gypsum is a solid waste produced in the process of preparing titanium dioxide by sulfuric acid method.The resource utilization of titanium gypsum has always been an important topic of concern in the titansium dioxide industry.In this paper,titanium gypsum was used as the main raw material,and cement,sand aggregate,slag and other auxiliary materials were added.The unburned blocks were prepared by pressing and natural curing.The compressive strength,water absorption and softening coefficient of unburned blocks under different material systems and ratios were studied.The results show that under the conditions of 35%cement and 65%titanium gypsum,the 28 d compressive strength of the unburned block can reach 22.27 MPa,the water absorption and softening coefficient are 12.25%and 0.87,respectively.The content of titanium gypsum was fixed at 65%,and sand aggregate,slag,lime and other materials were used to replace cement.It was found that the unburned block meeting the standard requirements could be prepared by reducing the amount of cement.Among them,when the content of slag and slaked lime is 12.5%and 2.5%respectively,the 28 d compressive strength of the block specimen reaches 29.34 MPa,and the water absorption and softening coefficient are 11.12%and 0.85 respectively.关键词
钛石膏/免烧砌块/抗压强度/吸水率/软化系数/资源化Key words
titanium gypsum/unburned block/compressive strength/water absorption rate/softening coefficient/resource utilization分类
化学化工引用本文复制引用
王永红,罗显明,付全军,竹文坤,郑奎,何嵘,黄阳..钛石膏基免烧砌块制备及其性能研究[J].化工矿物与加工,2025,54(12):33-39,7.基金项目
四川省科技计划项目(CCJ[2022]No.390-1-9). （CCJ[2022]No.390-1-9）
